It's made from zorb 2 and has a top layer of pro cool to keep your babies skin dry. The legs and waist come with super stretchy lastin elastic for a great fit on babies of all body types. The leg gussets help contain messes. This fitted is serged for durability

This fitted needs a waterproof cover

Upgrade and add a doubler for night use, testers have lasted 12 hours with no leaks.